三年级下册 小数的初步认识（口算）
姓名：_______________
学号：_______________
用时：_______________
| 3.6 - 2.0 = | 8.1 - 4.0 = | 7.7 + 1.0 = | 7.6 + 0.3 = |
| 3.8 + 5.7 = | 6.8 + 2.5 = | 5.4 + 2.3 = | 8.4 - 0.4 = |
| 6.2 + 2.9 = | 2.0 + 2.7 = | 4.7 - 1.1 = | 3.0 + 0.7 = |
| 3.2 - 2.6 = | 7.9 + 0.9 = | 3.1 + 1.8 = | 1.5 - 0.3 = |
| 8.3 + 0.3 = | 0.1 - 0.1 = | 1.4 + 4.7 = | 3.6 - 0.8 = |
| 2.5 + 7.0 = | 6.9 - 5.2 = | 1.5 - 0.5 = | 9.5 + 0.3 = |
| 4.8 - 3.6 = | 3.7 - 1.9 = | 0.5 - 0.4 = | 8.5 - 6.8 = |
| 2.8 + 1.9 = | 1.2 - 0.3 = | 6.1 - 2.5 = | 0.7 + 8.2 = |
| 7.7 + 0.9 = | 9.3 + 0.3 = | 9.7 - 8.3 = | 2.5 - 1.9 = |
| 3.6 - 1.3 = | 3.5 + 6.3 = | 3.1 + 2.6 = | 6.8 - 5.6 = |
| 7.7 + 0.2 = | 7.6 - 2.9 = | 2.5 - 2.0 = | 9.5 + 0.3 = |
| 6.4 + 2.8 = | 4.0 + 5.5 = | 3.2 - 0.3 = | 9.5 + 0.3 = |
| 2.2 + 2.3 = | 5.1 + 3.5 = | 6.1 + 2.2 = | 8.8 + 0.8 = |
| 5.3 + 3.5 = | 2.6 + 6.0 = | 5.3 + 2.8 = | 4.6 - 1.7 = |
| 0.6 - 0.4 = | 7.1 - 6.3 = | 1.6 + 0.2 = | 2.5 + 2.3 = |
| 0.2 - 0.1 = | 3.1 + 3.7 = | 8.5 - 3.7 = | 2.7 + 2.2 = |
| 3.3 + 4.2 = | 0.3 + 8.9 = | 5.9 + 0.8 = | 6.6 - 3.4 = |
| 2.9 + 5.6 = | 9.1 - 6.6 = | 7.0 - 4.7 = | 9.3 - 3.9 = |
| 5.1 + 1.9 = | 4.2 + 1.5 = | 8.8 - 0.2 = | 4.5 - 4.2 = |
| 5.4 + 0.4 = | 8.2 + 1.0 = | 2.6 + 0.9 = | 5.6 + 1.1 = |
| 0.8 + 1.5 = | 1.9 - 0.8 = | 7.6 + 0.3 = | 6.5 + 2.4 = |
| 8.2 + 0.9 = | 8.0 + 2.0 = | 2.6 - 0.1 = | 8.7 - 6.2 = |
| 4.0 - 2.9 = | 4.5 - 0.9 = | 6.1 + 2.1 = | 2.8 + 1.0 = |
| 8.2 + 1.5 = | 4.1 - 1.7 = | 7.0 - 0.2 = | 6.2 - 1.3 = |
| 4.0 - 0.3 = | 10.0 - 3.2 = | 8.1 + 1.1 = | 3.5 - 1.2 = |
三年级下册 小数的初步认识（口算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 3.6 - 2.0 = 1.6 | 8.1 - 4.0 = 4.1 | 7.7 + 1.0 = 8.7 | 7.6 + 0.3 = 7.9 |
| 3.8 + 5.7 = 9.5 | 6.8 + 2.5 = 9.3 | 5.4 + 2.3 = 7.7 | 8.4 - 0.4 = 8 |
| 6.2 + 2.9 = 9.1 | 2.0 + 2.7 = 4.7 | 4.7 - 1.1 = 3.6 | 3.0 + 0.7 = 3.7 |
| 3.2 - 2.6 = 0.6 | 7.9 + 0.9 = 8.8 | 3.1 + 1.8 = 4.9 | 1.5 - 0.3 = 1.2 |
| 8.3 + 0.3 = 8.6 | 0.1 - 0.1 = 0 | 1.4 + 4.7 = 6.1 | 3.6 - 0.8 = 2.8 |
| 2.5 + 7.0 = 9.5 | 6.9 - 5.2 = 1.7 | 1.5 - 0.5 = 1 | 9.5 + 0.3 = 9.8 |
| 4.8 - 3.6 = 1.2 | 3.7 - 1.9 = 1.8 | 0.5 - 0.4 = 0.1 | 8.5 - 6.8 = 1.7 |
| 2.8 + 1.9 = 4.7 | 1.2 - 0.3 = 0.9 | 6.1 - 2.5 = 3.6 | 0.7 + 8.2 = 8.9 |
| 7.7 + 0.9 = 8.6 | 9.3 + 0.3 = 9.6 | 9.7 - 8.3 = 1.4 | 2.5 - 1.9 = 0.6 |
| 3.6 - 1.3 = 2.3 | 3.5 + 6.3 = 9.8 | 3.1 + 2.6 = 5.7 | 6.8 - 5.6 = 1.2 |
| 7.7 + 0.2 = 7.9 | 7.6 - 2.9 = 4.7 | 2.5 - 2.0 = 0.5 | 9.5 + 0.3 = 9.8 |
| 6.4 + 2.8 = 9.2 | 4.0 + 5.5 = 9.5 | 3.2 - 0.3 = 2.9 | 9.5 + 0.3 = 9.8 |
| 2.2 + 2.3 = 4.5 | 5.1 + 3.5 = 8.6 | 6.1 + 2.2 = 8.3 | 8.8 + 0.8 = 9.6 |
| 5.3 + 3.5 = 8.8 | 2.6 + 6.0 = 8.6 | 5.3 + 2.8 = 8.1 | 4.6 - 1.7 = 2.9 |
| 0.6 - 0.4 = 0.2 | 7.1 - 6.3 = 0.8 | 1.6 + 0.2 = 1.8 | 2.5 + 2.3 = 4.8 |
| 0.2 - 0.1 = 0.1 | 3.1 + 3.7 = 6.8 | 8.5 - 3.7 = 4.8 | 2.7 + 2.2 = 4.9 |
| 3.3 + 4.2 = 7.5 | 0.3 + 8.9 = 9.2 | 5.9 + 0.8 = 6.7 | 6.6 - 3.4 = 3.2 |
| 2.9 + 5.6 = 8.5 | 9.1 - 6.6 = 2.5 | 7.0 - 4.7 = 2.3 | 9.3 - 3.9 = 5.4 |
| 5.1 + 1.9 = 7 | 4.2 + 1.5 = 5.7 | 8.8 - 0.2 = 8.6 | 4.5 - 4.2 = 0.3 |
| 5.4 + 0.4 = 5.8 | 8.2 + 1.0 = 9.2 | 2.6 + 0.9 = 3.5 | 5.6 + 1.1 = 6.7 |
| 0.8 + 1.5 = 2.3 | 1.9 - 0.8 = 1.1 | 7.6 + 0.3 = 7.9 | 6.5 + 2.4 = 8.9 |
| 8.2 + 0.9 = 9.1 | 8.0 + 2.0 = 10 | 2.6 - 0.1 = 2.5 | 8.7 - 6.2 = 2.5 |
| 4.0 - 2.9 = 1.1 | 4.5 - 0.9 = 3.6 | 6.1 + 2.1 = 8.2 | 2.8 + 1.0 = 3.8 |
| 8.2 + 1.5 = 9.7 | 4.1 - 1.7 = 2.4 | 7.0 - 0.2 = 6.8 | 6.2 - 1.3 = 4.9 |
| 4.0 - 0.3 = 3.7 | 10.0 - 3.2 = 6.8 | 8.1 + 1.1 = 9.2 | 3.5 - 1.2 = 2.3 |